{"answers":{"affected":"3 open source packages ship an affected version, including github.com/canonical/lxd. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34179 exists.","fix":"Apply the vendor's patch.","what":"CVE-2026-34179 is a critical vulnerability in Canonical lxd, published on 9 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34179 and fix it if it is affected.\n\nWhat it is: CVE-2026-34179 is a critical vulnerability in Canonical lxd, published on 9 Apr 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-34179 exists.\n\nAffected packages and fixed versions:\n- github.com/canonical/lxd (Go): affected all versions; no fix listed\n- github.com/canonical/lxd (Go): affected from 0.0.0-20210305023314-538ac3df036e up to 0.0.0-20260226085519-736f34afb267; no fix listed\n- github.com/canonical/lxd (Go): affected from 0.0.0-20210305023314-538ac3df036e up to 0.0.0-20260226085519-736f34afb267; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-34179/ (Markdown: https://insights.sbomify.com/CVE-2026-34179/index.md)","id":"CVE-2026-34179","markdown":"https://insights.sbomify.com/CVE-2026-34179/index.md","name":"CVE-2026-34179","record":{"aliases":["DEBIAN-CVE-2026-34179","GHSA-c3h3-89qf-jqm5","GO-2026-5306","UBUNTU-CVE-2026-34179"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"LXD container manager","requires_auth":"high_privilege","summary":"Authenticated attackers can escalate privileges to cluster admin by modifying the type field of restricted TLS certificates in LXD.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"lxd","vendor":"canonical"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-915","name":"Improperly Controlled Modification of Dynamically-Determined Object Attributes"}],"description":"In Canonical LXD versions 4.12 through 6.7, the doCertificateUpdate function in lxd/certificates.go does not validate the Type field when handling PUT/PATCH requests to /1.0/certificates/{fingerprint} for restricted TLS certificate users, allowing a remote authenticated attacker to escalate privileges to cluster admin.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Update of type field in restricted TLS certificate allows privilege escalation to cluster admin","id":"CVE-2026-34179","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"privilege_escalation","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Heap Buffer Over-read in ASN.1 Content Parsing","id":"CVE-2026-34180"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/canonical/lxd","purl":"pkg:golang/github.com/canonical/lxd","source":"GO-2026-5306"},{"ecosystem":"Go","fixed":[],"introduced":["0.0.0-20210305023314-538ac3df036e"],"last_affected":["0.0.0-20260226085519-736f34afb267"],"package":"github.com/canonical/lxd","purl":null,"source":"GHSA-c3h3-89qf-jqm5"},{"ecosystem":"Go","fixed":[],"introduced":["0.0.0-20210305023314-538ac3df036e"],"last_affected":["0.0.0-20260226085519-736f34afb267"],"package":"github.com/canonical/lxd","purl":"pkg:golang/github.com/canonical/lxd","source":"GHSA-c3h3-89qf-jqm5"}],"prev":{"headline":"Importing a crafted backup leads to project restriction bypass","id":"CVE-2026-34178"},"products":["lxd"],"published":"2026-04-09","related":[{"cvss_score":9.9,"headline":"Instance template path traversal allows arbitrary host file write as root","id":"CVE-2026-66897","kev_date_added":null,"published":"2026-08-24"},{"cvss_score":9.9,"headline":"Cross-project cluster migration bypasses project restrictions via cluster notification flag","id":"CVE-2026-62420","kev_date_added":null,"published":"2026-08-12"},{"cvss_score":9.9,"headline":"Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root","id":"CVE-2026-63293","kev_date_added":null,"published":"2026-08-12"},{"cvss_score":9.9,"headline":"Root RCE via image backup.yaml symlink","id":"CVE-2026-63294","kev_date_added":null,"published":"2026-08-12"},{"cvss_score":9.9,"headline":"Project restriction bypass via instance migration config override","id":"CVE-2026-63296","kev_date_added":null,"published":"2026-08-12"},{"cvss_score":9.9,"headline":"Cross-project instance copy bypasses target project restrictions via TOCTOU in config merge","id":"CVE-2026-63297","kev_date_added":null,"published":"2026-08-12"},{"cvss_score":9.9,"headline":"Cross-project instance move bypasses all project restrictions allowing host command execution","id":"CVE-2026-63300","kev_date_added":null,"published":"2026-08-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-09","vendors":["Canonical"]},"summary":"Authenticated attackers can escalate privileges to cluster admin by modifying the type field of restricted TLS certificates in LXD.","url":"https://insights.sbomify.com/CVE-2026-34179/"}